| Nominative | dobry wujek |
| Genitive | dobrego wujka |
| Dative | dobremu wujkowi |
| Accusative | dobrego wujka |
| Instrumental | dobrym wujkiem |
| Locative | dobrym wujku |
| Vocative | dobry wujku |
| Nominative | dobrzy wujkowie; wujki |
| Genitive | dobrych wujków |
| Dative | dobrym wujkom |
| Accusative | dobrych wujków |
| Instrumental | dobrymi wujkami |
| Locative | dobrych wujkach |
| Vocative | dobrzy wujkowie |